You met with lists in the previous section. In simple wording, a list is a data type similar to a vector allowing for storing values of different types.

To create list in R, use the `list()` function, passing all the values you want to store as the parameters. For example, we can store a single text string, number, and logical value in one 'container'.

# Creating a list
test <- list("Text", 42, TRUE)
# Output list value
test

As you can see, the list output is much larger than the vector one.

In the second part of R Introduction, you will learn about multi-dimensional built-in structures, such as matrices, data frames, and lists.

In the first section, you will learn the two-dimensional structure that is widely used in math. In R, this data type is used not only for math purposes but also has many real-life purposes.

In the second section, you will learn data frames - an 'upgraded' version of the matrix. Unlike matrix, the data frame may contain data of different types. Most real-life tables can be represented as data frames. You will learn how to create/manipulate data frames and extract necessary data.

In the final section, you will learn the lists in R. This data type works as vectors but may contain data of different types.

What is a List?

Soluzione

What is a List?

Soluzione